Continuous self-cleaning sluice

Abstract

This invention is a moving table for separating valuable heavy particles from an orebearing slurry of heavy consistency. The system uses reversing polarity as well as lateral oscillation. It also uses at least two tables to provide multiple stages of progression.

What is claimed is:  
     
       1. A shaker table comprising at least 2 planar members linking means such that motion in a first member causes motion in a second member in an opposite direction, a frame supporting said members, and actuation means for driving one of said planar members. 
     
     
       2. A table as described in claim  1  further comprising an eccentric plate driven rotationally by said actuation means to create lateral movement of said first member. 
     
     
       3. A table as described in claim  2  further comprising a crank shaft means for translating the motion of said eccentric plate into planar lateral motion of said planar member. 
     
     
       4. A table as described in claim  3  wherein said planar member comprises a rippled surface. 
     
     
       5. A table as described in claim  4  wherein said actuation means is an electric motor. 
     
     
       6. A table as described in claim  4  wherein said actuation means is a hydrocarbon fuel operated motor. 
     
     
       7. A table as described in claim  4  wherein said actuation means is water powered. 
     
     
       8. A table as described in claim  4  wherein one of said planar members further comprises a screen for sifting out stones or nuggets from a slurry. 
     
     
       9. A table as described in claim  1  wherein said planar members engage in a lateral oscillation motion. 
     
     
       10. A table as described in claim  1  further comprising magnetic means for agitating iron particles to assist the separation process. 
     
     
       11. A table as described in claim  10  wherein said magnetic means comprises at least one magnet disposed below at least one of said planar members which moves in a rotary fashion. 
     
     
       12. A stacked, combination self-cleaning sluice and finish concentrating table for gravity separating heavy material from lighter material: 
       means for trapping coarse heavy material in a primary trap,  
       means for discharging coarse heavy material trapped in primary holding trap,  
       means for discharging over-sized coarse material to tailings using screens,  
       means for continuous cleaning of sluice deck using riffles with open spaces,  
       means for discharging heavy concentrate from oscillating sluice to a finish concentrating table,  
       means for cleaning magnetic particles from concentrate,  
       means for oscillating two horizontal table decks in opposite directions while in a stacked mode using a rocker device,  
       means for driving a sluice and finish concentrating table combined, using an eccentric to create a gentle forward motion and compounded to a rapid return motion, longitudinally.  
     
     
       13. A sluice of claim  12  wherein said means comprises a heavy material trap installed at the feed end of said sluice, said heavy material trap comprising a box, which contains a barrier the full width of said sluice, said barrier is high enough to retain all heavy material. 
     
     
       14. A sluice of claim  13  wherein said heavy material box comprising a discharge port for discharging trapped heavy material, said heavy material box comprising a cap on said discharge port. 
     
     
       15. A sluice of claim  14  wherein includes screens generally overlying a riffled portion of said sluice. 
     
     
       16. A sluice of claim  15  wherein contains an unbroken concentrate barrier for containing all heavy materials, said concentrate barrier is located close to discharge end of said sluice. 
     
     
       17. A sluice of claim  16  wherein contains a discharge port adjacent to said concentrate barrier. 
     
     
       18. A sluice of claim  17  further includes riffles which are attached to said sluice deck whereby said riffles slope diagonally to discharge end and contain openings for heavy material to exit to said discharge port of said sluice. 
     
     
       19. A sluice of claim  18  further including a riffled portion at the discharge end of said sluice, whereby said riffled portion at the discharged end of said sluice is not screened and will form a trap for heavy material. 
     
     
       20. A sluice of claim  19  wherein including a rocker device for oscillating on a horizontal plane and creating a live bed for concentrating heavy material. 
     
     
       21. A finish concentrating table comprising a magnetic separator, said magnetic separator rotates horizontally below cleaning portion of said finish deck. 
     
     
       22. A finish concentrating table of claim  21  wherein said magnetic separator uses paramagnatism for effecting magnetic particles, said magnetic separator operating in an elliptical polarization. 
     
     
       23. A finish concentrating table of claim  22  comprising a submerged screen mounted at the head end of said finish concentrating table, wherein said submerged screen contains a vertical bent edge at the concentrate side for retaining over-sized material for disposal of tailings. 
     
     
       24. A finish concentrate table of claim  23  comprising a feed sluice sloping down-slope horizontally from a tailings side of said finish concentrating table, wherein said feed sluice is located at a head end of said concentrating table and will aid in making a cleaner concentrate. 
     
     
       25. A finish concentrate table of claim  24  comprising a rocker device for oscillating both said sluice table and said finish concentrating table, wherein said sluice table and said finish concentrate table will oscillate in opposite directions in relation to each other while in a stacked mode.